i-adjective
convenient; lucky; opportune
Archaic adjective meaning something is convenient, lucky, or happening at just the right time. Related to the modern adverb あわよくば ('if things go well'). Not used in contemporary Japanese outside of historical or literary contexts.
See also: あわよくば
古典では「あわよい機会」のように使われた。
In classical texts, it was used like 'a lucky opportunity'.